Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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Multidisciplinary Design Optimization of Vehicle Front Suspension System Using PIDO Technology

PIDO 기술을 이용한 차량 전륜 현가계의 다분야통합최적설계

  • Lee, Gab-Seong (Graduate School of Mechanical Engineering, Hanyang University) ;
  • Park, Jung-Min (Graduate School of Mechanical Engineering, Hanyang University) ;
  • Choi, Byung-Lyul (Technical Consulting Team, PIDOTECH Inc.) ;
  • Choi, Dong-Hoon (The Center of Innovative Design Optimization Technology, Hanyang University) ;
  • Nam, Chan-Hyuk (Structural Durability Research Center, Korea Automotive Technology Institute) ;
  • Kim, Gi-Hoon (Structural Durability Research Center, Korea Automotive Technology Institute)
  • 이갑성 (한양대학교 대학원 기계공학과) ;
  • 박정민 (한양대학교 대학원 기계공학과) ;
  • 최병렬 ((주)피도텍 기술사업부) ;
  • 최동훈 (한양대학교 최적설계신기술연구센터) ;
  • 남찬혁 (자동차부품연구원 내구기술연구센터) ;
  • 김기훈 (자동차부품연구원 내구기술연구센터)
  • Received : 2011.06.18
  • Accepted : 2012.05.15
  • Published : 2012.11.01
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Abstract

Multidisciplinary design optimization (MDO) for a suspension component of the vehicle front suspension was performed in this research. Shapes and thicknesses of the subframe were optimized to satisfy multi-disciplinary design requirements; weight, fatigue, crash, noise, vibration, and harshness (NVH), and kinematic and compliance (K&C). Analyses procedures of the performance disciplines were integrated and automated by using the process integration and design optimization (PIDO) technique, and the integrated and automated analyses environments enabled various types of analytic design methodologies for solving the MDO problem. We applied an approximate optimization technique which involves sequential sampling and metamodeling. Since the design variables for thicknesses should be dealt as discrete variables. the evolutionary algorithm is selected as optimization technique. The MDO problem was formulated three types of problems according to the order of priorities among the performance disciplines, and the results of MDO provided design alternatives for various design situations.

Keywords

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